Bollinger Bands Stochastic RSI Extreme Signal

The Bollinger Bands Stochastic RSI Extreme Signal indicator identifies potential price reversals by detecting mean-reversion opportunities when price returns from an extreme Bollinger Band deviation while the Stochastic RSI is in an overbought or oversold state.

Usage

The Usage section describes how the script can be used to pinpoint trend exhaustion and reversal points. Traders can utilize the automated visual signals to filter for entries where price action and momentum oscillators converge.

• Bullish Reversals: A bullish signal (green triangle) appears when a candle closes below the lower Bollinger Band, followed by a candle that closes back inside the band, provided the Stochastic RSI (K and D lines) was below the lower threshold (default: 10) during the initial breakout.
• Bearish Reversals: A bearish signal (red triangle) appears when a candle closes above the upper Bollinger Band, followed by a candle that closes back inside the band, provided the Stochastic RSI was above the upper threshold (default: 90) during the initial breakout.

These signals are designed to capture "fakeouts" or exhausted trends where price moves too far from the mean and momentum indicates a cooling period.

Details

The indicator combines two core technical analysis concepts: volatility bands and momentum normalization.

1. Volatility Filtering: By using Bollinger Bands, the script ensures that signals only trigger when price has deviated significantly from its moving average. The requirement for price to "re-enter" the band ensures that the extreme momentum is slowing down before a signal is plotted.
2. Momentum Validation: The Stochastic RSI is used to confirm that the price extreme corresponds with an extreme reading in momentum. This helps filter out Bollinger Band breakouts that may lead to trend extensions rather than reversals.
3. Refined Execution: The logic checks for the "extreme" state on the previous bar (the one that closed outside the bands) and confirms the reversal on the current bar.

Settings

• Source: Determines which price data (Close, Open, High, Low, etc.) is used for calculations.
• Offset: Shifts the Bollinger Band plots forward or backward on the chart.
• Bollinger Band Length: The period used to calculate the Simple Moving Average (Basis) and Standard Deviation.
• StdDev: The multiplier for the Standard Deviation to determine the width of the bands.
• K: The smoothing period for the Stochastic %K line.
• D: The smoothing period for the Stochastic %D (Moving Average of K).
• RSI Length: The lookback period for the underlying RSI calculation.
• Stochastic Length: The lookback period for the Stochastic calculation applied to the RSI.
• Upper Limit: The threshold level for overbought conditions (default 90).
• Lower Limit: The threshold level for oversold conditions (default 10).

FAQ

How do I interpret the triangle signals on my chart? A triangle pointing up indicates a bullish reversal setup where price has returned from a lower band extreme. A triangle pointing down indicates a bearish reversal setup where price has returned from an upper band extreme.

Can I adjust the sensitivity of the signals? Yes, you can increase the Bollinger Band Standard Deviation (StdDev) to make signals rarer and more significant, or adjust the Upper/Lower limits of the Stochastic RSI to tighten the momentum requirements.

How can I access the Bollinger Bands Stochastic RSI Extreme Signal? You can get access on the LuxAlgo Library for charting platforms like TradingView, MetaTrader (MT4/MT5), and NinjaTrader for free.